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3 years ago

Between wich two integers is the value of √21

Mathematics

2 answers:

RSB [31]3 years ago

5 0

4 and 5
4^2= 16
5^2= 25
Square root of 21= 4.5

Nataly [62]3 years ago

5 0

Your solution falls between 4 and 5. Hope this helps :)

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For a polynomial j(x), the value of j(-7) is 5. Which of the following must be true about h(x)?

faltersainse [42]

ANSWER

C. The remainder when j(x) is divided by x+7 is 5.

EXPLANATION

According to the Remainnder Theorem,

if p(x) is divided by (x+a), the remainder is given by p(-a).

The given polynomial is j(x).

If j(-7) is 5, then the remainder when j(x) is divided by (x+7) is 5.

The correct choice is C.

3 0

4 years ago

Find two decimals that are equivalent to (4×10)+(7×1\100

Wewaii [24]

(4×10)+(7×1\100) = 40+7/100 =4007/100

4007/100= <em>40,07</em>

40,07 = <em>40,070</em>

just add 0 to right side

(40,0700 also = 40,070)

Hope this helps ^-^

6 0

3 years ago

The mean of three numbers is 9. the mode of the same three numbers is 7.what is the largest number.

pentagon [3]

Answer:

Step-by-step explanation:

9>7

Hopefully, this helps! :D

5 0

3 years ago

7. A kite in the shape of a square with a diagonal 32 cm and an isosceles triangle of base 8 cm and sides 6 cm each is to be mad

grin007 [14]

Answer:

Step-by-step explanation:

diagonal = 32 cm

Area of square = $\dfrac{d^{2}}{2}$

$=\dfrac{32*32}{2}\\\\=512 \ cm^{2}$

Diagonal separate the square into two equal triangles.

Area of upper triangle that is shaded black = area of lower triangle = 512/2

= 256 cm²

Isosceles triangle:

a = 6 cm ; b = 6 cm c = 8cm

$s = \dfrac{a+b+c}{2}\\\\=\dfrac{6+6+8}{2}\\\\=\dfrac{20}{2}\\\\=10\\\\s-a = 10 - 6 = 4 \ cm\\\\s-b = 10-6 = 4 \ cm\\\\c - c = 10 - 8 = 2 \ cm\\\\Area = \sqrt{s*(s-a)(s-b)(s-c)}\\\\=\sqrt{10*4*4*2}\\\\=\sqrt{2 * 2 * 4 * 4 * 5}\\\\=4*2\sqrt{5}\\\\=8\sqrt{5}\\\\=8*2.24\\\\=17.92 \ cm^{2}$

Area of black shade paper = 256 + 17.92 = 273.92 cm²

Area of white shade paper = 256 cm²

Area of the isosceles triangle = s(s-a)(s-b)(s-c)

7 0

3 years ago

Absolute value of 2i

andriy [413]

Answer: the absolute value of 2i is 2

Step-by-step explanation:

6 0

3 years ago